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How to get the first five character of a String
...Substring() function would throw an exception because it'd iterate through letters that aren't there.
I think you get the idea...
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How do you convert a time.struct_time object into a datetime object?
...zone information in a datetime object which is lost when feedparser parses raw string dates.
– davidag
Aug 26 '19 at 15:17
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How do I send a file as an email attachment using Linux command line?
...mail to a remote email server for safekeeping. I've been able to send the raw script in the body an email by piping the backup text file to mailx like so:
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Case insensitive 'in'
...ove all case distinctions in a string. For example,
the German lowercase letter 'ß' is equivalent to "ss". Since it is
already lowercase, lower() would do nothing to 'ß'; casefold()
converts it to "ss".
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iTunes Connect: How to choose a good SKU?
...or your app in the Apple system that is not seen by users. You can use letters, numbers, hyphens, periods, and underscores. The SKU can’t
start with a hyphen, period, or underscore. Use a value that is meaningful to your organization.
Can’t be edited after saving the iTunes Connect reco...
How to make a python, command-line program autocomplete arbitrary things NOT interpreter
...eter(completer)
readline.parse_and_bind("tab: complete")
while 1:
a = raw_input("> ")
print "You entered", a
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Using multiple delimiters in awk
...
For a field separator of any number 2 through 5 or letter a or # or a space, where the separating character must be repeated at least 2 times and not more than 6 times, for example:
awk -F'[2-5a# ]{2,6}' ...
I am sure variations of this exist using ( ) and parameters
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Change select box option background color
..."3">Three</option>
</optgroup>
<optgroup label="Letters" class="blue">
<option value="a">A</option>
<option value="b">B</option>
<option value="c">C</option>
</optgroup>
</select>
and then in ...
Bash ignoring error for a particular command
...as referred in the POSIX specs) : and just "do nothing". You'll save a few letters. :)
#!/usr/bin/env bash
set -e
man nonexistentghing || :
echo "It's ok.."
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Remove duplicated rows
...nd package
library(dplyr)
dat <- data.frame(a = rep(c(1,2),4), b = rep(LETTERS[1:4],2))
Remove rows duplicated in a specific column (e.g., columna)
Note that .keep_all = TRUE retains all columns, otherwise only column a would be retained.
distinct(dat, a, .keep_all = TRUE)
a b
1 1 A
2 2 B...